[Patch, GCC]Backporting r269039 to gcc8

[Delia Burduv]

Ping. Has anyone had a look at the patch? Please let me know if it is fine.

Thanks,
Delia

________________________________
From: Delia Burduv <delia.burduv@arm.com>
Sent: 18 September 2019 15:54
To: gcc-patches@gcc.gnu.org <gcc-patches@gcc.gnu.org>
Cc: nd <nd@arm.com>; law@redhat.com <law@redhat.com>; ian@airs.com <ian@airs.com>; rguenther@suse.de <rguenther@suse.de>
Subject: [Patch, GCC]Backporting r269039 to gcc8

Hi,

I am trying to backport r269039 to gcc8 wich solved this bug report:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86487 . I have tested it on
arm-none-linux-gnueabi,aarch64-none-linux-gnu and x86_64-pc-linux-gnu
and there was no regression. The patch applied cleanly. I don't have
commit rights, so if it is ok can someone please commit it for me?

Thanks,
Delia

gcc/ChangeLog:
2019-09-13  Delia Burduv  <Delia.Burduv@arm.com>

         Backport from trunk
         2019-02-20  Andre Vieira <andre.simoesdiasvieira@arm.com>

         PR target/86487
         * lra-constraints.c(uses_hard_regs_p): Fix handling of
         paradoxical SUBREGS.

gcc/testsuite/ChangeLog:
2019-09-13  Delia Burduv  <Delia.Burduv@arm.com>

         Backport from trunk
         2019-02-20  Andre Vieira <andre.simoesdiasvieira@arm.com>

         PR target/86487
         * gcc.target/arm/pr86487.c: New.